Tube-winding machine.



G. P. WELSH.- TUBE WINDING MACHINE APPLIUATION FILED SEPT. Z3, 1910.

1,002,888.` famme@ sept. 12,1911.

2 SHEETS-SHEET 1.

Hill' En W a/lf/l/i/ mm Atlurnrgn C. F. WELSH.

TUBE'WINDING MACHINE.

APPLIoAnoN FILED SEPT. 2a, 14a-10,

2 SHEETS-SHEET 2.

CHARLES -F. WELSH, OF DETROIT, MICHIGAN'.

TUBE-WINDING: MACHINE.

Specification of Letters Patent.

Patented Sept. l2, 1911.

.Application led September 23, 1910. Serial No. 583,340.

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It has for its object an improved machine adapted to wind and shape a prismatic form of tube, using long ribbons of paper that are Wound-onto the mandrel to produce what is known as spirally Wound tubes. In the production of such a spirally wound tube the mandrel turns on itsI own axis and the tube is formed between the pointand the heel of the mandrel, the paper forming the tube being constantly added to the tube or wound at that end'thereof which lies toward the heel of the mandrel, and theformed or shaped part of the tube is pushed off from the end of the mandrel and is severed in lengths as may be desired.

In the drawings-Figure 1, is a plan view ofpart of the tube winding mechanism.

lThe journal bearing is shown in section.

Fig. 2, is a detail of that part of the mandrel and its attachment-s in which the special features of this invention are'found. Fig. 3, is a cross section on the line 3--3 of Fig. 2. Fig. et, is a plan View of the heel end of the mandrel.

The frame 1 of the machine supports the head 'or bearing 2 in which is the cylindrical journal end 3 of .the mandrel 4c. The mandrel 4 consists primarily of a track member er race member, which, in the form shown, is cruciform in shape and is adapted to produce a substantially square tube; but the prismatic form of tube may have any number of sides and the mandrel used will comprise a grooved body or member having as many projecting ribs as there are angles toy the prismatic tube to be formed. ln every case, however, the construction will be mechanically the same as that shown in the form here illustrated in which the mandrel is adapted to produce a square tube, and consists of four ribs 6, 7, 8 and 9. In the V 4form shown two of the ribs 8 and 9 are grooved, the two driving-chains being,- sullicient to move the tube along a mandrel which is adapted to produce a rectangular tube. The body part 19 of the mandrel is either integral with or secured firmly to the journal 3 and for purposes of clearness this grooved part of the mandrel will be hereinafter called the prismatic portion of the mandrel as distinguished from the journal The term prismatic is not strictly correct, because the side surfaces are preferably formed with rentering` curves 10, against which the paper or board of which the tube is made does not engage; the depth of the curve is quite immaterial. In each of the grooves 11 and 12 is located a chain similar to a sprocket chain with links shaped to present a bearing' surface at the corners of the prismatic member S), and to engage so closely' the oneA4 with another as to' produce a continuous line along the edge 13. On the run between the lends of the prismatic part of the mandrel at the delivery or point end of the mandrel each chain passes over a rag wheel or sprocket wheel 1dand at the heel end of the mandrel the sprocket chain passes over a similar rag wheel or sprocket wheel 15.

The shaft of the sprocket wheel 15 eX- tends to the side of .the mandrel, and on the terminal of the shaft is mounted a. `rear 16 that meshes with a fixed toothed wheel 17 mounted on the bearingvQ.. Inasmuch as the work required of th'e lntermeshing;- wheels 1G and 17 is light, it being only required that the work done thereby move the chain and the tube wound upon it, while the tube will nearly and sometimes quite move itself, the wheels 16 and 17 may be arranged as skew wheels, that is, the strain on the wheel 16 may be not directly perpendicular to the axis thereof but askew thereto. The teeth of the wheel 16 in this case are preferably cut somewhat in the shape of a spiral gear so that the contacting,T teeth lie in a radial plane with the larger wheel 17.

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The rotation of the mandrel on its own axis is produced by the belt 12 which drives the mandrel and which is itself propelled by the pulley 6. The rotation of the mandrel which carriesthc wheel 16 in revolution with it- Lcauses a corresponding rotation of the wheel 16 and drives the chain and carries forward the tube. The form of driving,r chain which has been described is adapted to a mandrel having an outline for tube forming purposes which equivalent to a -provided with bearingY prism; and in which there is arranged in grooves at corners of the iii-ini, or in some of tht rooting at Cornors of the prism mem bers which more to carry thotobe longitudinally ol' the mandrel.

@ther torn'ismay bo eaily and readily substituted for the @haiti which is heroin described which would produce substantiall),r tho Same reanltfs and would come within the spirit oit this, in'if'ai'ition, which com prises a firil 4,itieinai'idrel or av mandrel adapted tor the winding; of a prifeniatio Shaped "Inbo, in which provision is made for automatically shitting thol nialiing` tube along,- tho mandi-ril br means of meniborf I `points for the tnbe which. travel longthniSe ot' thev mamlrel while the mandrel evolving.

llllmt l claim isz l. ln a tube 'Winding maehino, in cmnbination. with a traino, a lined head thereon, a gear conneeted with said head, a manA dre] rotatably held by Said head, tube bearing members lo'mtctl in YSaid mandrel and continuously movable 'with respect thereto, and n'ioans engaging betwoen Said tube boaring membQrS and the l`a1- on Said head whereby the tubo boaring memoern are aotuatml, :aibstantialljT aS describotl.

2. In a ttil.ie-i')i'1iii1ig machine, in com bination with a rotatable mandrel, a tnbe bearing member upon Said mandrel having a bearing Surface adapted to move vcontinuously trom the heel to 'the point olf said inan drei., ai 'inter-acting device between SaidV tubo bearing member and a fixed part' ot the machine adapted to produce the. aetnation of said tube bearin; member contemporaneonsl;7 with the rotation o. aid mandrel, substantially as described.

3. A tube forming machina. having in combination aJ rotatable mandrel, a belt member adapted to travel lengthwise -on said mandrel and return and to @AY vos@ an a bearii'igg` surface oni),T 'that @irrt traveling from 'the boel of the mandrel to the point, means forfpropelling Said belt member nl bin Lion with ay tramo, a rotatable mandrel,

endless tube propelling and hearing member@ sustained by said mandrel and arranged to afford the bearing points of Said bearing members continuons motion lengthwise the mandrvl. in one direction sinmllaneously with the rotation thereof. and means vfor driving said tubo propellingv members by oontao- ,Vith stationary parts. of the frame, siilntantialluT aS (lestcrihod.

5. ln a` tubo winding machine, in combination with a rotatableI mandrel. endless tube bearing' meml'aiers Carried therein`- and haringfbearing point@ continuously moving lengthwiso said mandrel in ontl direction and means whefiebv the rotation of said mandrel actuator aaid tubo l ea ring' members, .antially as described.

C. ln a tube formii'igr machine, in combination with a mandrel rotatably mounted in Said machine, a. tube bearing; member on said mandrel having bearing' point?J moving eozitinnonsly lvngtlm'ief. said mandrel, an interacting (le-Vice between Said tnbt bearing; menib and a ,tix-ed part of the machine, adapted to prodnre the actuation ot Said tribe bearing member oontemporaneonsly with the rotation oit said mandrel.

T. ln a tube forming machine, in combination with a mandrel rotntabl \7 mounted CHA RL` S F. WE .i ital-1'.

llilitnosses a Colm-111s F. l-Snnroq, Lowa lime Br: f. i'. 

